Structural characterization of α-amino acid complexes of molybdates: a spectroscopic and DFT study

被引：8

作者：

Biancalana, Lorenzo ^{[1
]}

Bortoluzzi, Marco ^{[2
]}

Forte, Claudia ^{[3
]}

Marchetti, Fabio ^{[1
]}

Pampaloni, Guido ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56124 Pisa, Italy

[2] CaFoscari Univ Venice, Dipartimento Sci Mol & Nanosistemi, I-30123 Venice, Italy

[3] CNR, Ist Chim Composti OrganoMetall, Area Ric Pisa, I-56124 Pisa, Italy

来源：

RSC ADVANCES | 2015年 / 5卷 / 12期

关键词：

NUCLEAR-MAGNETIC-RESONANCE; EFFECTIVE CORE POTENTIALS; CRYSTAL-STRUCTURES; MOLYBDENUM PENTACHLORIDE; INFRARED-SPECTRA; METAL-COMPLEXES; MOLECULAR CALCULATIONS; PROTONATION SHIFTS; CHEMICAL-SHIFTS; OXO TRANSFER;

D O I：

10.1039/c4ra14236e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reactions of L-enantiopure alpha-amino acids (aaH) with Na2MoO4 led to the high-yield isolation of Mo(VI) complexes of general formula Mo2O4(OH)(4)(aaH). A similar outcome was achieved by using (NH4)(6)Mo7O24 in the place of Na2MoO4. Solid-state IR and NMR spectroscopy indicated the presence of cis-MoO2 units linked by a zwitterionic amino acid ligand, via a bidentate bridging coordination through the carboxylate group. Thus possible dinuclear and polynuclear structures are proposed on the basis of DFT calculations.

引用

页码：9010 / 9018

页数：9

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